First make sure, Dutch language is chosen in settings. There should be the Dutch-text-file on your Edge in directory /Garmin/text. The file is named: Dutch.gtt If this file can be found, it could be damaged - copy it to your PC and delete it on your device. After you are sure there is no file Dutch.gtt on your device, connect your device to your PC or Mac and start Garmin Express. Now download the textfile anew.
